摘要：The formation and evolution of a rift basin is the shallow response of deep geodynamic processes. The Bohai Bay Basin is at the center of lithosphere destruction and thinning in the eastern North China Craton (NCC). In this article, the Meso-Cenozoic thermal lithospheric thickness of the Bohai Bay Basin was calculated by reconstructing the thermal history of the sedimentary basin using apatite fission track and vitrinite reflectance data. The Meso-Cenozoic thermal modeling results show that the basin experienced four evolutionary stages with two heat flow peaks in the late Early Cretaceous and in the Middle to Late Paleogene, which had heat flow values of 82-86 and 81-88 mW/m(2), respectively. Accordingly, the thermal lithospheric thicknesses of the basin, calculated from the thermal histories, experienced two thinning stages in the Cretaceous and the Paleogene. The lithosphere began with an initial thickness of 150 km in the Early Mesozoic and was thinned to approximately 51-61 km in the late Early Cretaceous. The thickness then increased to approximately 80-90 km at the end of the Cretaceous. A second thinning phase occurred in the Middle to Late Paleogene, resulting in a thickness of only 43-55 km. The lithosphere thickened thereafter, and the NCC now has a thermal lithosphere of 75-97 km. The lithospheric thinning in the Cenozoic was dominated by extension rather than thermal erosion. At the same time, there existed some differences in the thermal evolution and lithospheric thinning evolution among different sub-basins, but the time of peak heat flow and peak lithosphere thinning in the Cenozoic is consistent with the migration of the depocenter of the basin. Therefore, the thermal history of sedimentary basins may provide continuous temporal and spatial evidence to reveal deep geodynamic processes. Our research provides new geothermal evidence for the lithospheric thinning of the NCC.

关键字：HEAT-FLOW UPPER-MANTLE TECTONIC IMPLICATIONS SEDIMENTARY BASINS JIYANG DEPRESSION TECTONOTHERMAL EVOLUTION CONTINENTAL LITHOSPHERE LIAODONG PENINSULA VELOCITY STRUCTURE GEOTHERMAL REGIME

ISSN号：0022-1376

卷、期、页：卷: 124 期: 2 页: 195-219

发表日期：2016-03-01

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF GEOLOGY

参与作者：左银辉

通讯作者：许威,李文正

第一作者：邱楠生,常健,朱传庆

论文类型：期刊论文

论文概要：邱楠生,左银辉,许威,李文正,常健,朱传庆，Meso-Cenozoic Lithosphere Thinning in the Eastern North China Craton: Evidence from Thermal History of the Bohai Bay Basin, North China，JOURNAL OF GEOLOGY，2016，卷: 124 期: 2 页: 195-219

论文题目：Meso-Cenozoic Lithosphere Thinning in the Eastern North China Craton: Evidence from Thermal History of the Bohai Bay Basin, North China